Optical constants

Refractive index of J-LASFH22 (HIKARI)

J-LASFH22: n,k 0.365–2.058 µm

Data
formula 3 + tabulated k
Range
0.365–2.058 µm
Temperature
296 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength.

At one wavelength

Range 0.365–2.058 µm
Refractive index n
1.8485
Extinction coefficient k
6.11859e-08
Permittivity ε1
3.41694
Permittivity ε2
2.26204e-07
Absorption coefficient α
0.0130852 cm⁻¹
Penetration depth δ = λ/(2πk)
1.52845e+09 nm
Abbe number Vd
43.791
Chromatic dispersion dn/dλ
-0.0991754 µm⁻¹
Group index ng
1.90677
Group velocity dispersion
184.768 fs²/mm
Dispersion parameter D
-1008.01 ps/(nm·km)
Photon energy
2.11001 eV

ε = (n + ik)², α = 4πk/λ, ng = n − λ dn/dλ, GVD = λ³/(2πc²) d²n/dλ², D = −(λ/c) d²n/dλ². Group-velocity dispersion is given for formula data only.

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith
import lightsmith as ls

# J-LASFH22 (HIKARI): J-LASFH22
hikari_j_lasfh22 = ls.fetch_refractiveindex("specs", "HIKARI-optical", "J-LASFH22", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hikari_j_lasfh22.range_nm)  # (365.015, 2058.09) nm
eps = hikari_j_lasfh22.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

Dispersion formula

Polynomial (formula 3), λ in µm
n2=3.32390176−0.0124810607⁢λ2.0−0.000116698235⁢λ4.0+0.0316622125⁢λ−2.0+0.000639837554⁢λ−4.0+8.855505×10-6⁢λ−6.0+1.07749628×10-6⁢λ−8.0

Valid from 0.365015 to 2.05809 µm.

Coefficients as stored
CiValue
C13.32390176
C2-0.0124810607
C32.0
C4-0.000116698235
C54.0
C60.0316622125
C7-2.0
C80.000639837554
C9-4.0
C108.855505e-06
C11-6.0
C121.07749628e-06
C13-8.0

Comments and conditions

Conditions

temperature
296 K

Properties

thermal dispersion
type: formula A, coefficients: 2.5512e-06 7.9428e-09 2.0617e-12 8.7538e-07 1.5764e-09 0.14748
nd
1.848500
Vd
43.790731
density
value: 5080
thermal expansion
value: 6.3e-06, temperature range: 243 343
dPgF
-0.0089
resistance
phosphate: 1.0

Thermo-optic coefficient

  • Schott thermal-dispersion model (reference temperature 296.0 K): dn/dT = 3.17e-06 K⁻¹ at 633 nm, dn/dT = 1.95e-06 K⁻¹ at 1310 nm, dn/dT = 1.85e-06 K⁻¹ at 1550 nm

References

Cite

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com); See also HIKARI glass data sheets; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 421 wavelengths, the same grid as the API and the library
J-LASFH22 (HIKARI), J-LASFH22: n and k versus wavelength
λ (µm)nk
0.3650151.8981795.760230e-07
0.3666011.8974165.340524e-07
0.3681931.8966614.918995e-07
0.3697931.8959154.495634e-07
0.371.8958194.440800e-07
0.3713991.8951774.218466e-07
0.3730131.8944483.962106e-07
0.3746331.8937283.704632e-07
0.3762611.8930153.446039e-07
0.3778951.8923113.186323e-07
0.3795371.8916142.925479e-07
0.381.891422.851900e-07
0.3811861.8909262.780793e-07
0.3828421.8902452.681485e-07
0.3845051.8895722.581745e-07
0.3861751.8889062.481573e-07
0.3878531.8882482.380965e-07
0.3895381.8875972.279920e-07
0.391.887422.252200e-07
0.391231.8869532.176001e-07
0.392931.8863172.070711e-07
0.3946371.8856871.964964e-07
0.3963511.8850641.858757e-07
0.3980731.8844491.752089e-07
0.3998021.8838391.644957e-07
0.41.883771.632700e-07
0.4015391.8832371.598696e-07
0.4032831.8826411.560154e-07
0.4050351.8820511.521445e-07
0.4067951.8814681.482567e-07
0.4085621.8808911.443521e-07
0.4103371.8803211.404304e-07
0.412121.8797561.364918e-07
0.413911.8791971.325360e-07
0.4157081.8786451.285631e-07
0.4175141.8780981.245729e-07
0.4193281.8775571.205653e-07
0.421.8773591.190800e-07
0.4211491.8770221.177443e-07
0.4229791.8764921.156181e-07
0.4248171.8759681.134827e-07
0.4266621.875451.113381e-07
0.4285161.8749371.091841e-07
0.4303771.8744291.070208e-07
0.4322471.8739271.048480e-07
0.4341251.8734291.026659e-07
0.436011.8729371.004742e-07
0.4379051.872459.827305e-08
0.4398071.8719689.606232e-08
0.441.871929.583800e-08
0.4417181.8714919.460073e-08
0.4436371.8710199.321843e-08
0.4455641.8705529.183013e-08
0.4474991.8700899.043580e-08
0.4494431.8696328.903541e-08
0.4513961.8691788.762893e-08
0.4533571.868738.621635e-08
0.4553261.8682868.479763e-08
0.4573041.8678468.337274e-08
0.4592911.8674118.194167e-08
0.461.8672578.143100e-08
0.4612861.866988.065597e-08
0.463291.8665547.944860e-08
0.4653031.8661327.823599e-08
0.4673241.8657147.701810e-08
0.4693541.86537.579493e-08
0.4713931.864897.456644e-08
0.4734411.8644857.333261e-08
0.4754981.8640837.209343e-08
0.4775641.8636857.084886e-08
0.4796381.8632926.959888e-08
0.481.8632246.938100e-08
0.4817221.8629026.893293e-08
0.4838151.8625166.838840e-08
0.4859171.8621346.784151e-08
0.4880271.8617556.729225e-08
0.4901481.861386.674060e-08
0.4922771.8610096.618655e-08
0.4944151.8606416.563009e-08
0.4965631.8602776.507122e-08
0.4987211.8599176.450992e-08
0.51.8597056.417700e-08
0.5008871.8595596.405448e-08
0.5030631.8592066.375393e-08
0.5052481.8588566.345208e-08
0.5074431.8585096.314892e-08
0.5096481.8581656.284444e-08
0.5118621.8578256.253864e-08
0.5140861.8574886.223151e-08
0.5163191.8571546.192304e-08
0.5185621.8568236.161324e-08
0.5208151.8564956.130209e-08
0.5230771.8561716.098959e-08
0.5253491.8558496.067573e-08
0.5276321.8555316.036050e-08
0.5299241.8552156.004391e-08
0.5322261.8549035.972594e-08
0.5345381.8545935.940659e-08
0.536861.8542865.908586e-08
0.5391931.8539825.876373e-08
0.5415351.8536815.844020e-08
0.5438871.8533835.811526e-08
0.546251.8530875.778892e-08
0.5486231.8527955.746115e-08
0.551.8526265.727100e-08
0.5510071.8525045.737581e-08
0.55341.8522175.762504e-08
0.5558041.8519325.787536e-08
0.5582191.851655.812676e-08
0.5606441.851375.837925e-08
0.563081.8510935.863285e-08
0.5655261.8508185.888754e-08
0.5679821.8505465.914334e-08
0.570451.8502765.940025e-08
0.5729281.8500095.965828e-08
0.5754171.8497445.991742e-08
0.5779171.8494816.017770e-08
0.5804271.8492216.043910e-08
0.5829491.8489636.070164e-08
0.5854811.8487086.096532e-08
0.5880251.8484546.123015e-08
0.5905791.8482036.149612e-08
0.5931451.8479546.176326e-08
0.5957221.8477076.203155e-08
0.598311.8474636.230101e-08
0.61.8473056.247700e-08
0.6009091.847226.266696e-08
0.6035191.846986.321255e-08
0.6061411.8467426.376051e-08
0.6087741.8465066.431086e-08
0.6114191.8462726.486359e-08
0.6140751.8460396.541872e-08
0.6167431.8458096.597627e-08
0.6194221.8455816.653624e-08
0.6221131.8453556.709864e-08
0.6248161.8451316.766349e-08
0.627531.8449096.823078e-08
0.6302561.8446886.880055e-08
0.6329941.844476.937278e-08
0.6357441.8442536.994751e-08
0.6385061.8440387.052473e-08
0.641281.8438257.110446e-08
0.6440661.8436137.168670e-08
0.6468641.8434047.227148e-08
0.6496741.8431967.285880e-08
0.651.8431727.292700e-08
0.6524961.842997.292515e-08
0.6553311.8427867.292306e-08
0.6581781.8425837.292095e-08
0.6610371.8423827.291883e-08
0.6639081.8421827.291671e-08
0.6667931.8419857.291457e-08
0.6696891.8417897.291243e-08
0.6725991.8415947.291028e-08
0.6755211.8414017.290811e-08
0.6784551.841217.290594e-08
0.6814031.841027.290376e-08
0.6843631.8408317.290157e-08
0.6873361.8406447.289937e-08
0.6903221.8404597.289716e-08
0.6933211.8402757.289494e-08
0.6963331.8400927.289271e-08
0.6993581.8399117.289048e-08
0.71.8398737.289000e-08
0.7023961.8397327.252261e-08
0.7054471.8395547.205468e-08
0.7085121.8393777.158472e-08
0.711591.8392017.111272e-08
0.7146811.8390277.063866e-08
0.7177861.8388547.016255e-08
0.7209041.8386836.968437e-08
0.7240361.8385136.920411e-08
0.7271811.8383446.872177e-08
0.730341.8381766.823733e-08
0.7335131.838016.775079e-08
0.73671.8378456.726213e-08
0.73991.8376816.677135e-08
0.7431141.8375186.627843e-08
0.7463421.8373576.578338e-08
0.7495851.8371966.528618e-08
0.7528411.8370376.478681e-08
0.7561121.8368796.428528e-08
0.7593961.8367226.378156e-08
0.7626951.8365676.327566e-08
0.7660091.8364126.276757e-08
0.7693361.8362596.225726e-08
0.7726791.8361066.174474e-08
0.7760351.8359556.122999e-08
0.7794071.8358056.071300e-08
0.7827931.8356566.019377e-08
0.7861931.8355075.967228e-08
0.7896091.835365.914853e-08
0.7930391.8352145.862250e-08
0.7964841.8350695.809419e-08
0.7999441.8349255.756358e-08
0.81.8349235.755500e-08
0.8034191.8347825.730728e-08
0.8069091.8346395.705441e-08
0.8104151.8344985.680045e-08
0.8139351.8343585.654538e-08
0.8174711.8342185.628920e-08
0.8210231.834085.603191e-08
0.8245891.8339425.577350e-08
0.8281721.8338065.551397e-08
0.8317691.833675.525331e-08
0.8353831.8335355.499152e-08
0.8390121.8334015.472859e-08
0.8426571.8332675.446452e-08
0.8463171.8331355.419930e-08
0.8499941.8330035.393293e-08
0.8536871.8328725.366541e-08
0.8573951.8327425.339672e-08
0.861121.8326135.312686e-08
0.8648611.8324845.285583e-08
0.8686181.8323575.258362e-08
0.8723911.832235.231024e-08
0.8761811.8321035.203566e-08
0.8799881.8319785.175989e-08
0.8838111.8318535.148292e-08
0.887651.8317295.120475e-08
0.8915061.8316065.092537e-08
0.8953791.8314835.064478e-08
0.8992691.8313615.036297e-08
0.91.8313385.031000e-08
0.9031751.8312395.176314e-08
0.9070991.8311195.355862e-08
0.911041.8309995.536190e-08
0.9149981.8308795.717302e-08
0.9189721.830765.899200e-08
0.9229651.8306426.081889e-08
0.9269741.8305256.265371e-08
0.9310011.8304086.449650e-08
0.9350461.8302916.634730e-08
0.9391081.8301756.820614e-08
0.9431881.830067.007305e-08
0.9472851.8299467.194807e-08
0.95141.8298317.383124e-08
0.9555331.8297187.572259e-08
0.9596841.8296057.762216e-08
0.9638531.8294927.952998e-08
0.9680411.829388.144608e-08
0.9722461.8292688.337052e-08
0.976471.8291578.530331e-08
0.9807121.8290478.724449e-08
0.9849721.8289378.919411e-08
0.9892511.8288279.115220e-08
0.9935491.8287189.311880e-08
0.9978651.8286099.509394e-08
11.8285569.607100e-08
1.00221.8285019.596389e-08
1.006551.8283939.575190e-08
1.010931.8282869.553900e-08
1.015321.8281789.532517e-08
1.019731.8280729.511040e-08
1.024161.8279669.489471e-08
1.028611.827869.467808e-08
1.033081.8277549.446051e-08
1.037561.8276499.424199e-08
1.042071.8275449.402252e-08
1.04661.827449.380210e-08
1.051151.8273369.358073e-08
1.055711.8272329.335839e-08
1.06031.8271299.313508e-08
1.06491.8270269.291081e-08
1.069531.8269239.268556e-08
1.074181.826829.245933e-08
1.078841.8267189.223212e-08
1.083531.8266169.200392e-08
1.088241.8265159.177473e-08
1.092961.8264139.154455e-08
1.097711.8263129.131336e-08
1.102481.8262119.108118e-08
1.107271.826119.084798e-08
1.112081.826019.061377e-08
1.116911.825919.037854e-08
1.121761.825819.014229e-08
1.126641.825718.990501e-08
1.131531.8256118.966670e-08
1.136451.8255118.942736e-08
1.141381.8254128.918698e-08
1.146341.8253138.894555e-08
1.151321.8252148.870308e-08
1.156321.8251168.845955e-08
1.161351.8250178.821496e-08
1.166391.8249198.796931e-08
1.171461.824828.772260e-08
1.176551.8247228.747481e-08
1.181661.8246248.722594e-08
1.186791.8245268.697600e-08
1.191951.8244298.672497e-08
1.197131.8243318.647284e-08
1.21.8242778.633300e-08
1.202331.8242338.663147e-08
1.207551.8241368.730101e-08
1.21281.8240388.797345e-08
1.218071.8239418.864882e-08
1.223361.8238448.932712e-08
1.228671.8237469.000836e-08
1.234011.8236499.069257e-08
1.239371.8235529.137975e-08
1.244751.8234559.206991e-08
1.250161.8233589.276307e-08
1.255591.823269.345924e-08
1.261051.8231639.415844e-08
1.266531.8230669.486067e-08
1.272031.8229699.556596e-08
1.277551.8228729.627431e-08
1.28311.8227759.698573e-08
1.288681.8226779.770025e-08
1.294281.822589.841787e-08
1.29991.8224839.913861e-08
1.305551.8223859.986248e-08
1.311221.8222881.005895e-07
1.316911.822191.013197e-07
1.322641.8220921.020530e-07
1.328381.8219951.027895e-07
1.334151.8218971.035293e-07
1.339951.8217991.042722e-07
1.345771.8217011.050184e-07
1.351621.8216031.057678e-07
1.357491.8215041.065205e-07
1.363381.8214061.072764e-07
1.369311.8213071.080356e-07
1.375261.8212081.087981e-07
1.381231.8211091.095640e-07
1.387231.821011.103331e-07
1.393261.8209111.111056e-07
1.399311.8208111.118815e-07
1.41.82081.119700e-07
1.405391.8207121.134421e-07
1.411491.8206121.151101e-07
1.417631.8205121.167853e-07
1.423781.8204111.184678e-07
1.429971.8203111.201576e-07
1.436181.820211.218548e-07
1.442421.8201091.235593e-07
1.448691.8200071.252713e-07
1.454981.8199061.269906e-07
1.46131.8198041.287175e-07
1.467651.8197021.304518e-07
1.474031.8195991.321937e-07
1.480431.8194971.339431e-07
1.486861.8193931.357001e-07
1.493321.819291.374648e-07
1.499811.8191861.392372e-07
1.506321.8190821.410172e-07
1.512871.8189781.428050e-07
1.519441.8188731.446005e-07
1.526041.8187681.464038e-07
1.532671.8186631.482150e-07
1.539331.8185571.500340e-07
1.546011.8184511.518610e-07
1.552731.8183441.536959e-07
1.559481.8182371.555387e-07
1.566251.818131.573896e-07
1.573051.8180221.592485e-07
1.579891.8179141.611154e-07
1.586751.8178051.629905e-07
1.593641.8176961.648737e-07
1.61.8175951.666100e-07
1.600571.8175861.670002e-07
1.607521.8174761.717770e-07
1.61451.8173651.765747e-07
1.621521.8172541.813931e-07
1.628561.8171431.862325e-07
1.635641.8170311.910930e-07
1.642741.8169181.959745e-07
1.649881.8168052.008773e-07
1.657051.8166912.058013e-07
1.664251.8165772.107467e-07
1.671481.8164632.157137e-07
1.678741.8163472.207022e-07
1.686031.8162312.257123e-07
1.693351.8161152.307443e-07
1.700711.8159982.357981e-07
1.70811.815882.408738e-07
1.715521.8157622.459716e-07
1.722971.8156432.510916e-07
1.730461.8155242.562338e-07
1.737971.8154042.613983e-07
1.745521.8152832.665853e-07
1.753111.8151612.717947e-07
1.760721.8150392.770269e-07
1.768371.8149162.822817e-07
1.776051.8147932.875594e-07
1.783771.8146692.928600e-07
1.791521.8145442.981837e-07
1.79931.8144183.035304e-07
1.81.8144073.040100e-07
1.807121.8142923.098600e-07
1.814971.8141643.163116e-07
1.822851.8140363.227912e-07
1.830771.8139083.292990e-07
1.838731.8137783.358350e-07
1.846711.8136483.423994e-07
1.854741.8135173.489923e-07
1.862791.8133853.556139e-07
1.870891.8132523.622643e-07
1.879011.8131193.689435e-07
1.887181.8129843.756518e-07
1.895371.8128493.823892e-07
1.903611.8127133.891558e-07
1.911881.8125763.959519e-07
1.920181.8124384.027775e-07
1.928531.8122994.096327e-07
1.93691.8121594.165177e-07
1.945321.8120184.234326e-07
1.953771.8118774.303776e-07
1.962261.8117344.373527e-07
1.970781.811594.443582e-07
1.979341.8114464.513940e-07
1.987941.81134.584605e-07
1.996581.8111534.655576e-07
21.8110954.683700e-07
2.005251.8110064.806193e-07
2.013961.8108575.009392e-07
2.022711.8107075.213475e-07
2.03151.8105565.418443e-07
2.040321.8104055.624302e-07
2.049191.8102515.831056e-07
2.058091.8100976.038707e-07

Optical transmission calculator

Free-standing sample in vacuum, normal incidence
Method
Transmittance T
—
Reflectance R
—

Fresnel reflection calculator

Direction
Rp
—
Rs
—
R = (Rp+Rs)/2
—
Phase φp
—
Phase φs
—
Brewster angle θB
—
Critical angle θC
—